
Costa Smeralda Weather September
To help you choose the best time to travel, you can find climate data below on the weather in Costa Smeralda in September.
![]() | average daily high | +27°C |
![]() | average daily low | +15.9°C |
![]() | sea temperature | +24°C |
![]() | daytime | 12.9 h |
![]() | sunny / overcast hours | 8.3 / 4.6 |
![]() | average monthly precipitation | 41 mm |
High season with the best weather conditions for the beach leisure in Costa Smeralda are typically July, August, September.
Temperature in Costa Smeralda
In September the average daily maximum in Costa Smeralda is +27°C, and the minimum +15.9°C.
The hottest September day on record is +38.3°C, and the coldest +8.9°C.
Most booked hotels in Costa Smeralda
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Best beach resorts in September:

Barcelona
Spain

Nice
France

Cannes
France

Lisbon
Portugal

Marseille
France

Algarve
Portugal
Daylight hours
There are 12.9 hours of daylight in Costa Smeralda in September. Out of these, on average 8.3 are sunny, which means there is quite a lot of sun.
Most Popular Destinations in the World
Sea temperature
The average monthly temperature in the Tyrrhenian Sea on the beaches of Costa Smeralda in September is +24°C.
The water is warm enough for nearly everyone to bathe in.
Costa Smeralda climate by month
Precipitation
The amount of precipitation in Costa Smeralda in September is usually 41 mm, a negligible amount.